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Related Experiment Videos

[Genetic testing in pregnancy].

P Miny1, K Heinimann, S Tercanli

  • 1Abteilung Medizinische Genetik, Departement Klinisch-Biologische Wissenschaften, Universitäts-Kinderspital beider Basel (UKBB) und Universitäts-Frauenspital Basel, Schweiz. Peter.Miny@unibas.ch

Therapeutische Umschau. Revue Therapeutique
|September 25, 2003
PubMed
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First trimester risk screening significantly improves detection of genetic diseases in pregnancy, reducing invasive procedures. Advances in molecular diagnostics offer early, reliable genetic condition diagnosis.

Area of Science:

  • Prenatal diagnostics
  • Medical genetics
  • Reproductive medicine

Background:

  • First trimester risk screening represents a major advance in identifying pregnancies at risk for genetic disorders.
  • Increasing maternal age necessitates improved screening methods beyond traditional maternal age-only approaches.
  • Non-invasive prenatal diagnosis (NIPD) shows promise but remains largely experimental for single gene disorders.

Purpose of the Study:

  • To review recent advancements in prenatal genetic screening and diagnosis.
  • To evaluate the impact of new methodologies on reducing invasive procedures.
  • To discuss the current status and limitations of various prenatal diagnostic techniques.

Main Methods:

  • Analysis of first trimester risk screening protocols.

Related Experiment Videos

  • Review of molecular cytogenetic techniques (e.g., chromosomal microarray).
  • Evaluation of molecular genetic testing on chorionic villi samples.
  • Assessment of non-invasive prenatal diagnosis (NIPD) research.
  • Consideration of preimplantation genetic diagnosis (PGD) and polar body diagnosis.

    • Main Results:

    • First trimester risk screening offers high detection rates with moderate false positive rates, reducing invasive procedures.
    • Molecular cytogenetics expands diagnostic capabilities beyond conventional karyotyping for aneuploidies.
    • Molecular genetic testing on chorionic villi enables early, reliable diagnosis of monogenic conditions.
    • NIPD is progressing but not yet a standard diagnostic tool for many genetic disorders.

    Conclusions:

    • First trimester risk screening is a pivotal advancement in prenatal genetic care.
    • Molecular techniques significantly enhance the ability to diagnose genetic diseases early and accurately.
    • NIPD holds future potential, while current molecular methods offer robust diagnostic options.